| 초록 |
The formation of perfect long-range order by soft building blocks is one of the most exciting interdisciplinary research areas in current materials science and nano-biotechnology. Here, we show perfect surface ordering of toric focal conic domains (TFCDs) with feature size of submicrometer over milimeter-scale area, which can be formed by smectic liquid crystals and a successful route for suitable surface treatment. The highly regular liquid crystal defect domains are several micrometers apart with nanometer dimple structures in the center of domain and hexagonally ordered with a single structure through large area. The domain patterns are molded by UV-curable polymers and transferred directly to another substrate by using micro contact printing technique. This method has significant advantages over existing approaches to lithographic applications that this is easy to fabricate, generate long-range surface ordering with millimeter-scale, need very short time to form periodic arrays. |
